Recent content by arnab ghosh

Grounded as in the neutral is connected to the ground by reactor in case of motor . In case of generator , since neutral is grounded with resistance , it helps to control the current and hence suppress stability issues. But I don't get why in case of motor , neutral is grounded through reactance...

Why are synchronous motors reactance grounded and not resistance grounded like in alternators?

Yes that is okay . That is the use of inserting Y-D transformers . But I wanted to know why Grounding Transformers(see the figure) are used with the secondary of a Y-D transformer when we need to connect single phase-ground loads. Is it because it completes the circuit and avoids voltage surges?

Just curious about why grounding transformers are used with a delta secondary . What would happen if I connect a phase to ground load to the secondary of a star delta transformer without adding a grounding transformer?

Hi all, I am Arnab currently preparing for Services Examination from Electrical Engineering